Clean up license section in README

Author: bgilbert

README.md

@@ -352,8 +352,7 @@ Providing a [`SOURCE_DATE_EPOCH`](https://reproducible-builds.org/specs/source-d
 
 ## License
 
-Sequence Editor for Git Interactive Rebase
-Copyright (C) 2017-2020 Tim Oram and Contributors
+Copyright © 2017-2024 Tim Oram and Contributors
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -365,8 +364,8 @@ but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
-You should have received a copy of the GNU General Public License
-along with this program.  If not, see <https://www.gnu.org/licenses/>.
+A copy of the GNU General Public License can be found in the file
+[COPYING](COPYING).
 
 See [Third Party Licenses](https://gitrebasetool.mitmaro.ca/licenses.html) for licenses of the third-party libraries used by this project.